| 摘要 |
1382521 Ammoxidation catalyst NITTO CHEMICAL INDUSTRY CO Ltd 10 March 1972 [12 March 1971] 11361/72 Heading B1E [Also in Division C2] An ammoxidation catalyst has the empirical formula Fe 10 W a X b Me c O d wherein: X. is one or more of P, B or Te; M e is V and/or Mo; a=1-30; b=0.01-15; c=0.01-5; and d= 12-143. The catalyst may be combined with a carrier, e.g. 10-90% wt (of entire catalyst) of silica, alumina zirconia, magnesia, silicaalumina, silicon carbide or inorganic silicate. The preparation of the catalyst includes a calcination step, e.g. at 400-950‹C for 2-48 hrs. The Examples describe catalyst oompositions combined with silica supports. |
